Topeka ? About 75 percent of incumbent Kansas legislators have filed for re-election, despite uncertainty about boundaries for their districts.

All 40 state Senate seats are up for grabs in November, and the secretary of state’s office reports online that 27 senators have filed to run again. The latest was Dwayne Umbarger, a Thayer Republican.

Ninety-eight of the 125 House members have also filed for re-election. The latest include veteran Republicans Forrest Knox of Altoona and Bill Otto of LeRoy, and longtime Democrat Bill Feuerborn of Garnett.

The filing deadline is noon on June 11.

But candidates don’t yet know how legislative districts will be redrawn to account for population changes over the past decade. Legislators failed to pass any redistricting proposals this year, leaving the job to three federal judges.